package com.imooc.controller;

import com.imooc.VO.ProductInfoVO;
import com.imooc.VO.ProductVO;
import com.imooc.VO.ResultVO;
import com.imooc.dataobject.ProductCategory;
import com.imooc.dataobject.ProductInfo;
import com.imooc.service.CategoryService;
import com.imooc.service.ProductService;
import com.imooc.utils.ResultVOUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author Administrator
 * @Title: BuyerProductController
 * @ProjectName sell
 * @Description: TODO
 * @date 2018/12/17/01711:25
 */

@RestController
@RequestMapping("/buyer/product")
@Slf4j
public class BuyerProductController {

    @Autowired
    private ProductService productService;

    @Autowired
    private CategoryService categoryService;

    @GetMapping("/list")
    public ResultVO list() {

        //1.查询全部上架商品
       List<ProductInfo> productInfoList = productService.findUpAll();
       //2.查询类目(一次性查询)

        //java 8 lambda 表达式
        List<Integer> categoryTypeList= productInfoList.stream().map(e-> e.getCategoryType()).collect(Collectors.toList());

        List<ProductCategory> productCategoryList= categoryService.findByCategoryTypeIn(categoryTypeList);

        //3.数据拼装
        List<ProductVO> productVOList=new ArrayList<>();
        for(ProductCategory productCategory:productCategoryList){
                ProductVO productVO=new ProductVO();
                productVO.setCategoryName(productCategory.getCategoryName());
                productVO.setCategoryType(productCategory.getCategoryType());

                List<ProductInfoVO> productInfoVOList=new ArrayList<>();
                for (ProductInfo productInfo:productInfoList){
                        if(productInfo.getCategoryType().equals(productCategory.getCategoryType())){
                            ProductInfoVO productInfoVO=new ProductInfoVO();
                            BeanUtils.copyProperties(productInfo,productInfoVO);
                            productInfoVOList.add(productInfoVO);
                        }
                }
                productVO.setProductInfoVOList(productInfoVOList);
                productVOList.add(productVO);


        }

        return ResultVOUtil.success(productVOList);
    }

}
